How GST Registration works
Step 1: Answer 5 questions - we build your checklist
Timeline: Day 0
- Business type, state, turnover estimate, supply type, and whether you need voluntary registration.
- Ollvy CA assigned within 4 hours.
Milestone: Ollvy CA assigned, checklist sent
Step 2: Upload documents through the app
Timeline: Day 0-1
- Ollvy CA sends a personalised checklist - not the full 20-item government list.
- You upload directly. Ollvy CA reviews every document before filing.
Milestone: Documents verified by Ollvy CA
Step 3: REG-01 filed - ARN in 24 hours
Timeline: Day 1-2
- Ollvy CA files REG-01 on the GST portal - all 23 fields across 5 tabs.
- Application Reference Number (ARN) generated immediately and shared in the app.
Milestone: ARN generated - shared in app
Step 4: Officer query handled by Ollvy CA
Timeline: Day 3-5
- GST officer asks for clarification in about 1 in 5 cases.
- Ollvy CA responds within 24 hours.
- Included in the price - not a separate charge.
Milestone: Query responded
Step 5: GSTIN issued
Timeline: Day 5-7
- Government issues your 15-digit GSTIN.
- Permanent - no renewal needed.
- Ollvy compliance calendar updated with GSTR-1 (11th) and GSTR-3B (20th) deadlines.
Milestone: GSTIN active
Everything included in GST Registration
Ollvy CA fills all 23 fields of REG-01
GST application has 23 fields across 5 tabs. Ollvy CA fills everything. You answer 5 questions.
Without Ollvy: 23 fields, 5 tabs, 3-4 hours on the GST portal
With Ollvy: 5 questions in app - about 4 minutes
ARN shared same day - track on gst.gov.in
Application Reference Number generated the moment Ollvy CA submits REG-01. Shared immediately.
Officer queries handled - no extra charge
GST officer asks for clarification in about 1 in 5 cases. Ollvy CA responds within 24 hours. Included in the price.
Without Ollvy: Officer query = you figure out what to submit
With Ollvy: Ollvy CA responds within 24 hours - included
Compliance calendar - GSTR-1 and GSTR-3B deadlines
The moment your GSTIN is active, filing deadlines (11th and 20th) added to your Ollvy calendar.
What could go wrong with GST Reg
Address proof mismatch
- Business address on your electricity bill must match the application exactly - even flat number format matters.
- Mismatch triggers an officer query that adds 3-5 days.
- Ollvy CA cross-checks every address document before filing.
Aadhaar OTP fails
- GST registration requires Aadhaar OTP on your linked mobile number.
- If the number is old or inactive, OTP fails and you cannot proceed - must be fixed at an Aadhaar centre first.
- Ollvy verifies your Aadhaar-linked mobile before filing.
Operating without registration
- If turnover crossed Rs. 40 lakh (goods) or Rs. 20 lakh (services) without registration, you owe 100% of unpaid GST plus Rs. 10,000 minimum penalty.
- Penalty starts from the date you should have registered, not when you get caught.
Composition Scheme opt-in window missed
- Composition Scheme election must be filed within the first 30 days of registration using CMP-02 (Section 10(1)).
- Miss this and you are locked into regular GST for the full financial year, paying 18% instead of 1% on turnover.
- Switching later is allowed only at the start of the next FY.
Wrong HSN or SAC code at application
- Every supply needs the correct 6-digit HSN (goods) or SAC (services) code.
- A wrong code triggers officer queries, delays GSTIN by 7-10 days, and later causes ITR mismatches when turnover is classified under the wrong category.
- Ollvy CA verifies HSN and SAC against CBIC notified list before filing.
Photograph and signature mismatch across Aadhaar, PAN, and bank
- Officers reject applications when the authorized signatory photo on Aadhaar, PAN, and bank statement do not match.
- This is the #2 cause of GST rejection after address proof.
- Ollvy checks all three documents side-by-side before submission and updates any mismatch at source first.
Frequently asked questions about GST Registration
When is GST registration required?
Mandatory above Rs. 40 lakh turnover for goods, Rs. 20 lakh for services (Rs. 10 lakh in NE/special category states). Required for any interstate sale regardless of turnover, and for all e-commerce sellers.
Can I register voluntarily?
Yes. Lets you issue GST invoices and claim ITC on purchases. Useful if clients are businesses who need to claim credits on your invoices.
What is the ARN?
Application Reference Number - generated the moment Ollvy CA submits REG-01. Shared immediately. Track progress at gst.gov.in.
What if the officer raises a query?
Ollvy CA responds within 24 hours. Included in the price. Happens in about 1 in 5 cases. Most resolve in one reply.
What documents do I need?
Depends on business type. Ollvy sends a personalised checklist based on your answers - not the full 20-item government list.
What returns after getting GSTIN?
GSTR-1 (sales) by the 11th, GSTR-3B (tax) by the 20th. Every month, even with zero transactions - missing a nil return costs Rs. 50/day. GSTR-9 (annual) by Dec 31.
Can I register for GST in a state where I have no permanent office?
Yes. Ollvy registers Casual Taxable Person (CTP) GST if you will sell at an exhibition, trade fair, or make occasional supplies from a non-home state. CTP is valid for 90 days (extendable by 90 more) and requires an advance tax deposit estimated on projected turnover. For ongoing operations in a new state, Ollvy files an additional place of business under your existing GSTIN.
What happens if my GST registration is rejected?
Ollvy reads the rejection reason from the GST portal (usually address proof mismatch or photograph quality). Ollvy responds to the officer query within 7 working days with corrected documents. If the officer still rejects, Ollvy files a fresh application with the fix applied. No extra fee from Ollvy for rework within the same engagement.
Is Composition Scheme different from regular GST registration?
Yes. Composition Scheme (Section 10) lets you pay 1% of turnover (traders) or 5% (restaurants) instead of regular GST rates, but you cannot claim ITC and cannot make inter-state supplies. You opt in during registration using CMP-02. Eligible only if turnover is under Rs 1.5 crore. Ollvy files regular + CMP-02 together if Composition is the right fit.
Can I cancel GST registration later if business slows down?
Yes. Ollvy files GSTR-10 (final return) and REG-16 (cancellation) if turnover drops below the Rs 40 lakh (goods) or Rs 20 lakh (services) threshold. Cancellation is granted 30-45 days after the final return. Ollvy offers GST cancellation as a separate Rs 999 service.
Do I need separate GST for each state I sell in?
Yes. GST is state-based. Every state where you have a physical place of business needs its own GSTIN. If you ship from one state to customers in another, you bill IGST from your registered state. If you operate from multiple states, Ollvy files one GSTIN application per state.
How long does the GSTIN remain valid once issued?
Permanent, unless cancelled. Exception: Casual Taxable Person (CTP) GST expires after 90 days. For regular GST, you must file monthly or quarterly returns to keep it active. Six months of continuous non-filing triggers automatic cancellation by the officer.
GST Registration
GSTIN in 7 working days. Application, officer queries, and compliance calendar included.
Delivery by 15 Jul
THE PROCESS
How Ollvy registers your GST
Step 1: Answer 5 questions - we build your checklist
Business type, state, turnover estimate, supply type, and whether you need voluntary registration. Ollvy CA assigned within 4 hours.
Milestone: Ollvy CA assigned, checklist sent
Step 2: Upload documents through the app
Ollvy CA sends a personalised checklist - not the full 20-item government list. You upload directly. Ollvy CA reviews every document before filing.
Milestone: Documents verified by Ollvy CA
Step 3: REG-01 filed - ARN in 24 hours
Ollvy CA files REG-01 on the GST portal - all 23 fields across 5 tabs. Application Reference Number (ARN) generated immediately and shared in the app.
Milestone: ARN generated - shared in app
Step 4: Officer query handled by Ollvy CA
GST officer asks for clarification in about 1 in 5 cases. Ollvy CA responds within 24 hours. Included in the price - not a separate charge.
Milestone: Query responded
Step 5: GSTIN issued
Government issues your 15-digit GSTIN. Permanent - no renewal needed. Ollvy compliance calendar updated with GSTR-1 (11th) and GSTR-3B (20th) deadlines.
Milestone: GSTIN active
Answer 5 questions - we build your checklist
- Business type, state, turnover estimate, supply type, and whether you need voluntary registration.
- Ollvy CA assigned within 4 hours.
Ollvy CA assigned, checklist sent
WHAT YOU GET
Everything included
GST Application (REG-01)
All 23 fields handled by Ollvy CA
Ollvy CA fills all 23 fields of REG-01
GST application has 23 fields across 5 tabs. Ollvy CA fills everything. You answer 5 questions.Others
23 fields, 5 tabs, 3-4 hours on the GST portal
Ollvy
5 questions in app - about 4 minutes
Application Reference Number
AA270325014782R
Processing
Filed: 25 Mar 2025
Track at gst.gov.in
ARN shared same day - track on gst.gov.in
Application Reference Number generated the moment Ollvy CA submits REG-01. Shared immediately.Officer queries handled - no extra charge
GST officer asks for clarification in about 1 in 5 cases. Ollvy CA responds within 24 hours. Included in the price.Others
Officer query = you figure out what to submit
Ollvy
Ollvy CA responds within 24 hours - included
Added to your calendar automatically
Compliance calendar - GSTR-1 and GSTR-3B deadlines
The moment your GSTIN is active, filing deadlines (11th and 20th) added to your Ollvy calendar.We file correctly.
Not just on time.
Others
Documents taken as-is. Query or rejection? Your problem.
Ollvy
Every document reviewed before filing. Mismatches and format issues caught upfront.
NEXT STEPS
What GST Reg unlocks
Services that become available or mandatory after completion.
GST Monthly Filing
GSTR-1 by 11th and GSTR-3B by 20th of every month once GSTIN is issued.
Business ITR Filing
Company ITR still required annually even with GST registered.
TDS Monthly Compliance
Required once you deduct TDS on salaries, rent, or contractor payments.
CUSTOMER REVIEWS
What customers say about GST Reg
Done in 6 days. They caught a document issue before filing that I would never have noticed. Tracked everything on the app.
- Rajesh Kumar Agarwal
Officer asked for something extra and it was handled without me being involved. Saw it resolved on the dashboard.
- Meenakshi Sundaram
We were billing without GST for months. The CA got our GSTIN in 5 days and backdated the first invoice. Clean process.
- Tarun Bhatia
| Document | Sole Proprietor / Individual | Pvt Ltd / LLP |
|---|---|---|
| PAN card | Owner PAN | Company / LLP PAN |
| Aadhaar card | Owner Aadhaar (OTP required) | Not required at entity level |
| Address proof (business) | Electricity bill (not older than 2 months) | Electricity bill (not older than 2 months) |
| No-objection letter from property owner | If premises is rented | If premises is rented |
| Bank account proof | Cancelled cheque or 3-month bank statement | Cancelled cheque or bank statement |
| Business registration proof | Not required (proprietorship) | Certificate of Incorporation or LLP agreement |
| Director/partner PAN | Not applicable | All directors or designated partners |
| Board resolution | Not required | Authorising a director to apply |
| Passport photo | Owner photo | Authorised signatory photo |
Your documents are encrypted, visible only to your assigned professional, and deleted 90 days after your order closes.
COMMON QUESTIONS
Frequently asked questions
Government Fees - GST Registration
| Item | Government Fee | Notes |
|---|---|---|
| GST registration application | Free | No government fee for registration |
| Penalty if registering late (turnover above threshold) | Rs. 10,000 minimum or 100% of unpaid tax | Whichever is higher - stops accruing once registered |
| Late filing fee after registration (returns with transactions) | Rs. 50/day per return, capped at Rs. 10,000 | Rs. 50/day total per return |
| Late filing fee (zero-transaction returns) | Rs. 20/day per return, capped at Rs. 500 | Rs. 20/day total per return |
RELATED GUIDES
Deep-dive guides on GST Reg
Written by the same Ollvy CA team. Linked sources, updated when regulations change.
₹1,499
₹5,000
Delivery by 15 Jul